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[ODB1] Chapter 1 - About ObjectDB

Describes the main features and editions of ObjectDB 1.0 for Java/JDO.... to another JDO compliant database (for example, as a result of special customer needs or requests) can be done without modifying ...


[Explorer] Editing Database Files

Some features of ObjectDB 1 Explorer have not been implemented yet in the new Explorer of ObjectDB 2. The new Explorer of ObjectDB 2 is currently a viewer rather than editor, and database files are always opened in read only mode. The ability to create new database objects and edit existing database object has to be reimplemented in the ObjectDB 2. Feature Request Version: Priority: High Status: Fixed Replies: 4 Type:  Feature Request ...


Enhancer -s broken

Hi, after upgrading to ObjectDB 2.5.4_04 we noticed that the enhancer option -s is currently broken. According to your docs <java classname="com.objectdb.Enhancer" fork="true"     classpath="c:\objectdb\bin\objectdb.jar">   <arg line="-s c:\my-project\classes\*.class"/> </java> we've added the enhancer to our ant build: ... work in one environment and not in another, it me be the result of automatic shell wildcard expansion , i.e. ObjectDB Enhancer ...


Possible issue with String fields

Hi I'm brand new to objectdb and I'm trying to create an objectdb from a sample db via jdbc. The code all works and for a few thousand records but when I increase the number of records I get the following " ... 1 more Java Result: 1 When I comment out the fields that are strings all works out ...


Index on map key

Is there a way to create an Index with @Index on the key of a map? ... - ms ; System. out . println ( "Result: " + resultList ) ; System. out . println ...


ORDER BY problem, when String starts with language specific character

Dear all, I have a problem with ORDER BY clause. I have a simple query: select u from User u order by u.name When the name starts with "normal/english" character, records are ordered correctly. But when it starts with language specific character like 'Č', these records are placed after records with normal charaters. So records with 'Č' are after 'Z', but this is not correct, because 'Č' is between 'C' and 'D'. ... BY clause. However, if you have to sort a large result list - it might be more efficient to add a persistent normalizedName ...


join(attribute, jt)

Create a join to the specified single-valued attribute using the given join type.(Method of javax.persistence.criteria.From)


Custom Classloader: Issues with the Enhancer Agent

In my use case I generate some classes dynamically and load them with a custom classloader. The classloader is very standard and does something like this (simplified): #1 2017-10-14 19:29 In my use case I generate some classes dynamically and load them with a custom classloader. The classloader is ve ...


Server out of memory exceptions

I've started to get memory exceptions on objectdb instances running as a server. The objectdb log reports this as: ... the query program cache (and maybe also the query result cache). Thank you for this important report and heap dump data. ...



Create an inner join to the specified Map-valued attribute.(Method of javax.persistence.criteria.From)